A 20-inch diameter circle contains: 314.16 square inches.
The area of a circle with a diameter of 20 cm is: 314.2 cm2
Area = pi*102 = 314.159 square inches to 3 decimal places
The diameter of the circle works out as 20 units to the nearest whole number
A circle with a radius of 10 cm has an area of 314.16 square cm
(100 pi) square inches is.
There are 100*pi square inches in a 20 inch diameter circle
A 20-inch diameter circle contains: 314.16 square inches.
The area of a circle with a diameter of 20 cm is: 314.2 cm2
If the area of a circle is 20 square inches the diameter is: 5.046 inches.
Diameter = 20 inch => radius = 10 inches = 10/12 feet. So area = pi*(10/12)^2 = 2.1817 sq feet approx.
If the diameter of a circle 20 cm is tripled the area will increase from 314.2 cm2 to 2,827 cm2
Area of circle: pi*(20/12)^2 = 8.727 square feet rounded to 3 decimal places
Area of circle: pi*10^2 = 314.159 square inches rounded to 3 decimal places
Area of a circle = πr² (remember that r or radius is exactly half of the diameter) Radius therefore = 40/2 = 20 inches Thus the Area = 3.14159 × 20 squared = 1256.636 square inches
Area = pi*102 = 314.159 square inches to 3 decimal places
Area of a circle = pi*radius2.